公开(公告)号：WO2004032203A3

公开(公告)日：2004-05-27

申请号：PCT/US0322461

申请日：2003-07-16

Applicant: EMCORE CORP

Inventor： RATHNAM LAKSHMAN ,  LAU EDMOND ,  MERTZ PIERRE ,  YUEN ALBERT T ,  HUANG HOWARD

IPC: G02B6/42 ,  H05K1/18 ,  G02B6/00 ,  G02B6/36 ,  H01L21/00 ,  H01L29/16 ,  H01L29/267 ,  H01L29/34

CPC classification number: G02B6/4201 ,  G02B6/4256 ,  G02B6/4277 ,  G02B6/4281 ,  G02B6/4283 ,  H05K1/189 ,  H05K2201/10121

Abstract: A flexible printed circuit board (FPCB) for fiber optic modules (200) includes a board with multiple bends, forming a structure with sides (306) and a bottom (303). The traces (204) in the FPCB traverse from the opto-electronic chips (210), through the sides of the FPCB, to the module (200) interconnects at the bottom (303). The multi-fold structure allows the FPCB to support a higher number of traces (204) than conventional single-fold FPCB's, and it allows the fanning out of signal traces from the opto-electronic and electronic chips (210) at the front of the fiber-optic module (200), thereby reducing the crosstalk between the traces. This higher number is provided with a FPCB that features a single insulating layer and without the need to criss-cross the traces (204), resulting in improved signal integrity over conventional multi-layer FPCB's.

Abstract translation: 用于光纤模块（200）的柔性印刷电路板（FPCB）包括具有多个弯曲的板，形成具有侧面（306）和底部（303）的结构。 在FPCB中穿过FPCB的侧面的FPCB中的走线（204）在底部（303）互连。 多折叠结构允许FPCB支持比常规单折FPCB更多数量的迹线（204），并且其允许从在前面的光电子和电子芯片（210）的信号迹线扇出 光纤模块（200），从而减少迹线之间的串扰。 该更高数量的FPCB具有特征在于单个绝缘层并且不需要跨越迹线（204）的FPCB，导致比常规多层FPCB更好的信号完整性。